Unmanned aerial vehicle cluster positioning method based on channel state information

Abstract

The invention provides an unmanned aerial vehicle cluster positioning method based on channel state information. The unmanned aerial vehicle cluster positioning method comprises the following steps that firstly, CSI signals corresponding to a reference point in a surrounding space area of a lead plane and a position information fingerprint database are established; and secondly, CSI signals corresponding to to-be-detected points of a wing plane are obtained, the obtained CSI signals corresponding to the to-be-detected point are matched with the fingerprint database established in the first step, and thus the position of the to-be-detected point is calculated. According to the unmanned aerial vehicle cluster positioning method, the channel state information is applied to the unmanned aerialvehicle cluster positioning environment for the first time, and the between-vehicle positioning precision and the anti-GPS interference ability of an unmanned aerial vehicle are improved; and meanwhile, through signal transmission between the lead plane and the wing plane, the corresponding channel state information is received for positioning, between-vehicle positioning can still be conducted when an unmanned aerial vehicle cluster operates in the harsh environment and GPS signals cannot be received, and the operation ability of the cluster is ensured.

Description

technical field [0001] The invention belongs to the technical field of positioning, and in particular relates to an inter-device positioning method based on channel state information. Background technique [0002] At present, with the development of drone technology, major breakthroughs have been made in drone cluster and collaborative technology. In the UAV formation, the leader needs to know the position information of the wingman at any time, so as to further command and judge the wingman. Therefore, location information is crucial in UAV formation. At present, it is relatively easy to obtain the absolute position of the UAV. The longitude and latitude information of the UAV itself is obtained mainly through the GPS system of satellite navigation. However, after the absolute position is obtained, the wingman still needs to communicate with the lead plane to calculate the relative Only the position of the lead plane can be used for command and judgment. Therefore, the a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a UAV swarm positioning method based on channel state information, which solves the problem of obtaining UAVs by transmitting inertial navigation and GPS system data through the airborne data link in the existing UAV swarm formation. It is used to guide the coordinated flight of the formation; however, when the GPS signal is interfered or the GPS cannot be used, the positioning accuracy between aircraft is difficult to meet the requirements of coordinated operations

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